Instrumental vaginal delivery technique for fetus in cephalic presentation includes forceps delivery and vacuum extraction. Assessment of the fetal head position and position prior in the second stage of labor is the key point for successful instrumental vaginal delivery. When the lowest point of fetal head is lower than 2 cm of ischial spines and occipitoanterior, the fetal appears a relatively low risk of instrumental vaginal delivery. Obstetricians should strictly grasp the indication of instrumental vaginal delivery, and should communicate with the patients well. Clinician′s judgment, training experience and clinical experience are the important factors for successful instrumental vaginal delivery.